Николай Васильчук — Передача видео без потери качества в WebRTC: опыт VK Звонков

In your web chat, a link appears to the mental channel where in a few minutes we, together with Nikolay, will answer your questions in a more behind-the-scenes environment while you still remember what Nikolay just told us, please provide your feedback as speaker, your opinion and of course yours are really important questions, let me start with this, really warming up, when you first told me how baht sifters work, you talked a lot about a magic websocket that browsers have to agree on each other, but the browser can't connect to another browser via websocket, it doesn't know the IP address and the manufacturer of the stove, most likely it's 192 168, that's when you showed all this code that connects to the websocket and what kind of websocket was in your examples, well of course you need some kind of server in which there is some kind of server arena to which we will connect, but if we talk about the choice of titicaca technology it is so summary that we can transfer data from one user to another, we can optionally transfer it through a websocket, it can be absolutely any communication channel, we just need to receive an offer from one client, receive a response from another client and exchange them.

Bids response is a certain set of data which lists the interfaces, network interfaces and audio and video tracks that users will transfer to each other respectively, after exchanging these data, each user comprises what interface you can connect to and what data you will receive through this peer toupper connection, of course this is all very superficial and there are many other internal things that are needed to establish a connection, for example the server field of a DNS server, but this is already beyond reach. scope of this report, and we have a question from Kirill Tolkachev, who asks if we compare screen broadcasts using standard media in the office, that is, the channel is transmitted as the same slow stream as, for example, a camera and broadcasts over a data channel with different codecs and different compression options, what will be the difference in processor usage, approximately well, I don't have specific numbers at the moment, but there won't be a drastic difference, first of all, if we use in the codec, after all, they are already in the temple launched and work very optimally and very quickly if we use any of the px, of course the load will still be a little higher, but still an acceptable drastic difference, no, but there is a difference in quality of course in quality which of them will be better which of them but, of course, if we transmit frames through a beta channel, the quality will be higher because we transmit them without changes, if we receive a frame of 4k, then it goes to all the other users of the call for all subscribers in the same form without changes, thank you, well, I suggest you stay out of it, come to Zoom in just a minute, we will join you in the meantime you can vote and leave your comments, thank you. thank you